Strip for floors of the terrazzo type



Feb. 4, 1930. P. GALAssl u 1,745,939

STRIP FOR FLOORS THE TERRAZZO TYPE Filed Aug. 5, 1929 Itlie iioor Vis laid.

` yPatented Feb. F1930 'i l' 'TED' :PASQUALE GALASSI, oFNEw lironie-1v. Y.

riflessa srriairv ron FLOORS :F `THE TERRAZZO v'rYNrIE y Application iiiea'Augusta, i929. seriai No. 383.249-

Thisinve'ntion relates to Aimprovements in' theconstructionof terrazzo andnsimilar floor-v ings, ,and more particularly `refers to a new y'typerof dividing rstrip'adaptedfor use inV finishing layer generally Consisting of a mixture of marble chips and cement', by means of which a good .durable surface .may 'be vobtained as jwelly as pleasing designs and color effects of apractically"unlimited va- YTheupper layer which is generally placed i in `position 'after thefoundation layery has been allowed to harden'to a sufficient degree of consistency, is generally dividedzintov a number of panels or unitsv in a predetermined arrangement, which are obtained by ,outlining the' desired ldesign' by means' of dividing layer. u Y

TheseV strips generally consist of (flat, metal bars set on edge having their upper' edges i `stripspl'aced on or through the :foundationA tive of a' strip composed of 'two flat sections,

i 'flush with'the surface of thefloor;` and said l bars are generally provided'y with anchoring and vpositioningmeans insuringa firm bindl ving action between the strips and they materials of which the floorfis composed.

These bars are generally made ofy relatively soft' metal such 'as brass'for instance,

the wearing qualities of which are approxi- A mately equal to those of the floor itself; and

accordingto thel nature'of the floor and of the-design to be produced, the dividing strips -m'aybe ofvarious thicknesses land lengths.

Relatively lthin Vstrips may readily Abe lob- ""40 tained out of sheet metal, and are suitable forv floors of moderate size; however rela- "metallic-hoor strip, Serial No. 375,053, I have :tively large floors, or floors composed'of relatively large units, call forstrips having sufliicient rigidity to withstand'the lateral presvfk5 sure of the material, without bulging when These heavier stripsl are also generally made out ofsheet metal but brass being expensive material, their use inateriallyincreases the costof the floor.

The primary object of tli-isinventi'on'is AnotherY object is to vthe strip illustrated'in Fig. 4 in position.

to provide dividing strips of a vnovel and f improved construction in which only a relatively thin sectionmade of metal showing through the floor'lis used together with an` Y other section made of less expensive material 155 completing the strip, said two sections having portions overlapping each other, so as to jointly impart tothe lstrip the necessary rigidity.

strip of the character vspecified in which the .1 two sections are joined to eachother purely r by means of punching press operations avoidl.ing the necessity of using riveting or welding y'or other relatively expensive processes.'

Other objects and advantages of thepresent invention will more fully appear as lthe description lproceeds and will be set forth andclaimed in the appended claims.

Various embodiments of my invention are '-70 illustrated in the accompanying drawings, in which: Y

Fig. l is a fragmentary view in :perspecthe inner' edges of which overlap andy are [75 join-ed tok each other;

Fig. 2 is Va. y fragmentary tionthereof; Y

Figl'is a fragmentary view in perspective'of another strip also embodying'my` inventionin which the inner edgesof the two' sections are bent laterally to form a reinforcing flange; n a

Fig. .4 is a fragmentary viewy in perspective of a strip somewhat similar'to that shown in Figs. l and 2, in which the` joining and anchoringmeans can also vloeyused as posi'- tioning means; and

Fig. 5 is a vertical cross section showing longitudinal sec- In another patentapplication entitled Bishown and described dividing lstrips made of two sections having their inner edges overy lappingeach other and secured to eachother `95 by means of rivets;y

In another application entitled Compositey lfloor dividing stripsferial No. 376.80.81 have also described and claimed dividing 'strips of the samefcharacter in which how-100 HCE,

provide a dividing '60 I' more economical and to a certain extent more reliable than the rivetingor welding'or brazing operations above mentioned.

I have found in practice that a positive joining of the two sections of the stripmay be effected by partially punching andforcing out laterally burrs or lugs from the-two adjoining thicknesses of metal. In this manner, the two sections composing the strip remain securely joined to each other by virtue of the friction mutually exerted between the two metal tongues or extensions formed at each point of junction, said extensions at the saine time forming prongs or other laterally projecting members which effectively serve as anchoring means for the strip.

Such a method of joining two sections of a strip has been shown by me in a patent entitled Floor laying devices, Patent No. 1,667 ,313 granted to me April 24, 1928; the construction of strip described in said patent however, was essentially different fromA that of the strips forming the subject Vof the present application.` j

The strip representedin Figs. 1 and'2 comprises an uppersection 10 and a lower section 11, both said sections being made of relay tively light gauge metal and having their inner edges overlapping each other so as to form an intermediate thickerfportion 12 of the strip.

As a general rule the upper section will be made of brass while the lower section may be made of steel, this being a less expensive yet stronger and stiffer material. As shown in the drawing, the two sections are joined to each other by partially punchingand forcing out laterally burrs or lugs from the two-adjoining thicknesses of metal at spaced intervals forming prong members-13, 14, etc., laterally projecting from the intermediate portion of the strip.

These prongs may all be bent toone side or else they may be bent in alternate directions as shown. By virtue of this construction the two sections of which the strip is composed are permanently and securely connected to each vother to 'form a single unit adapted to be conveniently handled and placed in position with a VminimumV expenditure of timeand labor;

At the same time ,the laterally extending Y prongs 13, 14 provide veryeffective anchorbeddedl in the concrete or other material of which the bed is composed, when said material is still in its plastic condition.

A strip of greater rigidity will be obtainedv if the inner edges of the two sections are bent laterally of the body ofsaid sections so as to form horizontal flanges therefor. A strip of this character. is illustrated in Fig; 3 where the upper section 15 and the lower section 1G have their inner edge portions'bent at onelside'to form laterally extending flanges 17, 18, said two lianges abutting against each other aiidforming a means for connecting the Ysections of the strip together by forcing outV from said flanges downwardly directed prongs ,19 ats-paced intervals, as shown;

In a strip of this character, theprongs still act as anchoring means for the strip while the liange formed by flanges 18, 18 forms a positive positioning means for the strip providing a. surface which. may' rest directly on top of the lower layer of the floor and which will be covered by the upper layer. j

Such a fiange insures the vertical alignment of the strip and also materially increases its rigidity so that materials of very light gauge may be used.V

In Fig. 4 I illustrate another strip Acomposed of an upper section 20 and a lower section 21 the inner edge portions of which overlap to form an intermediate thicker portion 22 ofthe strip. In this case the two sections` are joined together by forcing out laterally atspacedintervals open top cup members 23. which arestruckoff the two overlapping thicknesses of metal. Y y

These cupmembers also provide anchoring andpositioning means and furthermore tend to strengthen rather than weaken the sectionof'the strip, at the same time increasfing its rigidity.

A strip of this character is shown in Fig. 5 where 24 designates thelower layer or bed of a terrazzo floor resting on op ofthe. foundation bed'V 25. The lower portion of the strip is embedded into the lower layer 24, its loweredge resting against the top of the foundation bed and the upper edges of the open top cup members defining the depth of the provide a construction of strip which is more economical than those described and claimed in my other two pending applications above referred to and which is particularly suitable for use when light gauger sections are employed;

The inventive idea may be applied in strips the construction of which may be different from' those shown; the` drawings will` there- Y .1 From the foregoing it will be seen that I Y1374,5,989 Y y 3 fore be understood as being intended for illustratiVe purposes onlyv and not ina limiting sense; -Accordingly, I reserve theright to carry my invention into practice in all those ways and manners,'which may enter, fairly, into the scope of the appended claims.

Iclaim: Y Y f l. A floor strip ofthe character described, comprising an upper section and a lowersection, each section having the inner portion of one of its surfaces only abutting against a corresponding portion of one of the surfaces of the other section, and members simultaneously struck o both sections .and offset laterally thereof, said members permanently conecting said two sections to each other, and forming anchoring means therefor.

2.1Aiioor strip of the character'described,

comprising an upper section and a lower section, each sectionhaving the inner portion of one of its surfaces only abutting against a corresponding portion of one of the surfacesfof the other section, and a plurality of open-'top` cupinembers simultaneously struck off both sections and offset laterally thereof, said .members permanently connecting said two sections to each other, and forming anchoring means therefor.

' 3. A floor strip of'the'character described,

comprising an upper section and a lower section,.each section having theinner portion of one of its surfaces only abutting against a coi'- responding portion of one of the surfaces-of the other section, and a plurality of spaced two sections to each other, and forming anchoring and positioning means therefor.

6. A iioor strip of the character described,

comprising an upper section and a lower seci tion, each section having the inner portion of n one of its surfaces only abutting against a cormeans therefor, said'two sectionsbeing sof tion, each sect-ion having the inner `portion of one of its surfaces only abutting against a corl responding portion of one-of the surfaces of K the other section, and a pluralityof spaced lopen top cup members simultaneously struck ofi' bothv sections and offset laterally thereof, alternately at one side and then at the other,

said memberspermanently connecting said two sect-ions to each other, and forming anchoring and positioning means therefor, said two sections beingk made of different metals.

PASQUALE GALASSI.

open top` cupA members simultaneously struck Y off both sections and offset laterally thereof, alternately at one side and then' at the other, said members permanently connecting said two sections to each other, and forming anchoring means therefor. v

4. A floor strip of the character described,

' comprising an uppersection and a lower section, each section having the inner portion Aof one ofits surfaces only abutting against a corresponding portion of one of the surfacesof `the other section, and a plurality of open top cup members simultaneously struck off both sections and offset laterally thereof, said meml bers permanently connecting said two sec-V tions to each other, and forming anchoring means therefor, theupperV edges of said cup members being at a distance from the upper edge of said strip, corresponding to the thicki ness of the upper layer of the fioor into which said strip is to be embedded. f

5. A floor strip'of the character described, comprising anupper section and a lower section, each section havin the inner portionof oneof its surfaces only a utting against a corresponding portion of one of the surfaces of theV other section, and a plurality of spaced lopentop cup members simultaneously struck .off both sections and oflset'laterallythereof,

, alternately atvone side and then at the other, said-members permanently connecting said ic5 i 

